@media screen and (min-width: 768px) {
    .container {
        width: 750px;
    }
}

@media screen and (min-width: 992px) {
    .container {
        width: 970px;
    }
}

@media screen and (min-width: 1200px) {
    .container {
        width: 1170px;
    }
}